Pond fountain slab


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@Steve2324 Turning off the pumps in winter has a lot to do with your climate. My winters (Southern US) are very mild and ponds don’t freeze. I leave mine going 24/7/365.
I think the pond pump would probably prevent my water from freezing? Wouldn't constant circulation of water help it stop freezing? We get to -5c maybe one day a year
 
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Another quick question for you guys on this forum.

Do you think lily bulbs planted along the edge of my liner will send out roots that will puncture the liner? Or will the roots just curl around the liner?
 
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@Steve2324 I run my waterfall all winter long and we have many many days well below 0F here in the midwestern US. But a key to whether or not your waterfall can stay on during freezing weather is the construction. Even running water can freeze along the top and edges and the ice that forms can create dams that redirect the water out of the pond. The only way to really know if it will work is to try it and see what happens. But be prepared to shut it down if it looks like you are going have an issue with ice.

As for plants along the liner - they will not puncture the liner, but they can force the liner down and allow water to flow over the edge. Again - watch your pond as things develop and you will learn what may cause you issues down the road.
 
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@Steve2324 I run my waterfall all winter long and we have many many days well below 0F here in the midwestern US. But a key to whether or not your waterfall can stay on during freezing weather is the construction. Even running water can freeze along the top and edges and the ice that forms can create dams that redirect the water out of the pond. The only way to really know if it will work is to try it and see what happens. But be prepared to shut it down if it looks like you are going have an issue with ice.

As for plants along the liner - they will not puncture the liner, but they can force the liner down and allow water to flow over the edge. Again - watch your pond as things develop and you will learn what may cause you issues down the road.
That's reassuring then I've planted all the bulbs today for the lillies.

I've tested the fountain and it so loud! Next door will definitely be complaining about that.

Can anyone tell me if I add a 40mm tee to the outlet of the pump would that reduce the flow by exactly half or would a lot of the water go straight out of the tee and reducing it by a lot more than half?
 
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When you say "fountain" do you mean the waterfall? Or the pump?

I don't know a lot about plumbing, but a tee sounds like you'd be directing water elsewhere? I think it's more common to slow the flow from a pump with a ball valve so you can turn it up or down to make adjustments, if that's your goal.

I think I understand your liner issue better now - you're talking about the liner in the pool behind the waterfall slab and adhering that to the lip of the pool where the water flows over the edge. I don't really have any great ideas for that. Technically, the liner should be under the slab and extend down the wall of the pond. Will your whole pond be lined?
 
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Yes the whole pond is lined. I thought ball valves caused problems with pumps I can get one if that's what I needed.

The whole pond is lined. Here's a picture of it all working the way I wants it's just the unsightly liner I'm trying to figure out how to hide now.

The waterfall is getting quieter as the pond fills as it falls less of a distance so maybe I won't need to reduce the flow by the time it's full
 

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I was going to suggest that you can change the sound of the waterfall by how it hits the surface - sounds like you figured that one out!

You are going to have a challenge hiding that liner... I'm not sure how high your water level will be when it's full. Maybe you could do like a capstone on the top that overhangs and hides the liner?
 
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I'm on a budget for this pond unfortunately wife not happy with me spending so much as I had to go for the cheapest liner I could find.

I didn't realise until after I had bought it that no glue actually sticks to this liner due to it being made of polyethylene.

I'm hoping creeping Jenny that I will plant will creep all over the liner from all directions in the waterfall so that it hides the liner.

The pond will be full all the way to where the black liner stops on the wall of the waterfall
 
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Missed the question about fountain yes sorry when I keep saying fountain I meant the waterfall
 
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I have corrugated pond hose leading to the waterfall.

To reduce to flow slightly do you think it would be possible to prick some small holes in the hose under the water level so some of the water returns to the pond before the waterfall or would the small holes eventually tear under pressure?
 
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We freeze up here and my pump is external. So I turn it off.
Ok hopefully I will be alright as the water shouldn't freeze.

Right guys I'm sorry I feel like I'm asking a million questions I've figured out the flow issue I've ordered some ball valves to add onto the access pipe under the gravel.

My next question ...
Is there such a thing as a check valve that will stop back flow into the pond if my electric was to go off, but also a switch to allow backflow if and when I wanted it?

I was thinking I could backflow the gravel if it ever got blocked and dump it on a grow bed.

I've found some check valves but non seem to have the option to allow the flow when I choose to backflow
 

addy1

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Is there such a thing as a check valve that will stop back flow into the pond if my electric was to go off, but also a switch to allow backflow if and when I wanted it?
Add a T, one leg the check valve, one leg a open pipe with a ball valve that you can open if you want to back flow.
 
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Keep asking questions! You'll learn and we'll learn and anyone in the future reading this thread will also learn from your experience!
 
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Add a T, one leg the check valve, one leg a open pipe with a ball valve that you can open if you want to back flow.
I'll do that thanks.
I filled the pond last night and woke up this morning and I've lost 4 inches of water..

I think the waterfall is splashing out of the pond quite a lot
 
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If I lift up the lip of the liner sitting on the slab there is water getting back there. The slab is on a decline towards the pond and not level. I thought that made it impossible for water to backflow up and under the liner
 

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Even with the slab declining towards the pond the thin space between liner and slab acts as a wick and will let the water run out the back side of the slab.

Could try adding a large bead of silicone between liner and slab. Then mortar some rock down on top of the liner, not only will this hide the liner, but the idea is the weight of the mortar and rock acts as a clamp on the siliconed liner creating a seal and preventing the liner from separating from the slab.

Another thought, is if you have enough liner in the pool at the waterfall, pull more liner over the slab. Then use mortar to create a berm or raised edge on back edge directly on the slab, drape liner over this then mortar rock down on top of liner against the raised edge or berm.

Both suggestions will raise water level in upper pool, before it spills over, but from your pic it looks like you have room for it.
 
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Even with the slab declining towards the pond the thin space between liner and slab acts as a wick and will let the water run out the back side of the slab.

Could try adding a large bead of silicone between liner and slab. Then mortar some rock down on top of the liner, not only will this hide the liner, but the idea is the weight of the mortar and rock acts as a clamp on the siliconed liner creating a seal.
Any idea what kind of rock I could use?
There's not much space there for big slabs
Would the rock raise the level of the overflow even more?
 

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